Ubuntu has release kernel version "6.2.0-32-generic #32~22.04.1-Ubuntu SMP PREEMPT_DYNAMIC Fri Aug 18 10:40:13 UTC 2 x86_64 x86_64 x86_64 GNU/Linux" which has successfully resolved this defect case.
One of the Samba maintainers told me I should check if SMB 1.0 protocol was purposely removed from the Ubuntu 6.2.0-31 kernel version. This evening I received that changelog, and could not see a hint of it being removed by Ubuntu on purpose. Then my system notified me of a yet newer kernel package. I pulled it down, and was happy to see it has successfully resolved this defect. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-signed-hwe-6.2 in Ubuntu. https://bugs.launchpad.net/bugs/2034033 Title: Ubuntu 22.04 update to 6.2.0-31 kernel version breaks mount.cifs to vers=1.0 server cifs_mount failed w/return code = -5 Status in linux-signed-hwe-6.2 package in Ubuntu: New Bug description: My Xubuntu system this weekend alerted me to a new kernel update being available. The following versions are the existing/working version: linux-image-6.2.0-26-generic 6.2.0-26.26~22.04.1 And the updated/not working version: linux-image-6.2.0-31-generic 6.2.0-31.31~22.04.1 And yes I run my system with: linux-image-generic-hwe-22.04 6.2.0.31.31~22.04.8 Booted to the 6.2.0-31 kernel version, attempting to do a mount.cifs operation to our Samba NT4 PDC, results in the following output into syslog: Sep 4 08:03:24 jaakob kernel: [ 107.703886] FS-Cache: Loaded Sep 4 08:03:24 jaakob kernel: [ 107.824160] Key type cifs.spnego registered Sep 4 08:03:24 jaakob kernel: [ 107.824169] Key type cifs.idmap registered Sep 4 08:03:24 jaakob kernel: [ 107.824454] Use of the less secure dialect vers=1.0 is not recommended unless required for access to very old servers Sep 4 08:03:24 jaakob kernel: [ 107.824454] Sep 4 08:03:24 jaakob kernel: [ 107.824457] CIFS: VFS: Use of the less secure dialect vers=1.0 is not recommended unless required for access to very old servers Sep 4 08:03:24 jaakob kernel: [ 107.824460] CIFS: Attempting to mount \\ldslnx01\data Sep 4 08:03:24 jaakob kernel: [ 107.859554] CIFS: VFS: cifs_mount failed w/return code = -5 And none of the Samba mounts will establish. Booting back to the prior 6.2.0-26 kernel version, Samba mounts work just fine. I use the following switches to the mount.cifs command in order to establish connections to our Samba NT4 PDC: "-o credentials=/home/mdlueck/.smbcredentials,uid=mdlueck,gid=mdlueck,dir_mode=0777,file_mode=0666,nobrl,vers=1.0" That last vers= option was the last that needed to be added to continue making use of our Samba NT4 style PDC. Since it is a version upgrade of only the kernel, not Samba package, I would not think that yet another switch to mount.cifs was needed in order to continue connecting successfully. So did the latest Kernel update suddenly break Samba's mount.cifs vers=1.0 support? Nothing gets logged to our Samba server for the failed mount attempt. Booting for not back to the working 6.2.0-26 kernel version. Please kindly advise. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-signed-hwe-6.2/+bug/2034033/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
